Face mask



FIG. 1 is a perspective of a face mask in an in-use configuration;

FIG. 2 is a front elevation of the face mask;

FIG. 3 is a rear elevation of the face mask;

FIG. 4 is a left side elevation of the face mask;

FIG. 5 is a right side elevation of the face mask;

FIG. 6 is a top plan of the face mask; and,

FIG. 7 is a bottom plan of the face mask.

The dashed lines in the figures illustrate environmental features forming no part of the claimed design. 

CLAIM The ornamental design for a face mask, as shown and described. 